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Question about standard k-e and low-re-ke

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Old   September 23, 2009, 19:45
Default Question about standard k-e and low-re-ke
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I'm using a UDF v2-f model. The v2-f model uses a different formulation for epsilon, but the same formulation for k as the k-e model.

As far as I can tell, the only difference between the k-e and low-re-ke models are the damping functions included in the epsilon transport equation. So my first question is, is that true?

If it's true, then why am I seeing different results for my v2-f model when I use the standard k-e model's k equation and the low-re-ke model's k equation?
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Old   September 27, 2009, 23:19
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Im no pro, but i figued you could use some input.

Damping ratio shouldnt change the end result, but it can...
It is possible that one of your solutions has found a "local min" for the residuals and has converged on a phantom solution as opposed to the desired solution.

I would try increasing the mesh resolution and attempt the model comparison again.

Best of Luck
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